# Display a Message Box after running nodes

**URL:** <https://forum.dynamobim.com/t/display-a-message-box-after-running-nodes/21147>\
**Category:** Uncategorized\
**Created:** [April 18, 2018, 4:11am UTC](https://forum.dynamobim.com/t/display-a-message-box-after-running-nodes/21147 "2018-04-18T04:11:32Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![rgesner](https://avatars.discourse-cdn.com/v4/letter/r/c67d28/32.png) [@rgesner](https://forum.dynamobim.com/u/rgesner)\
**Post date:** [May 25, 2018, 9:32pm UTC](https://forum.dynamobim.com/t/display-a-message-box-after-running-nodes/21147/7 "2018-05-25T21:32:39Z")

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I wanted to display an instructional message box in some of my Dynamo Player scripts only if needed parameters were missing.

So I started with the python script I found in the above posts (Thanks) and added to it - see: [Message Box instruction if parameter missing](https://forum.dynamobim.com/t/message-box-instruction-if-parameter-missing/22236)

- Rusty

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